PT-2026-71903 · Openwrt · Luci

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CVE-2026-72840

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Published

2026-08-13

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Updated

2026-08-13

CVSS v3.1

8.8

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OpenWrt LuCI contains an overly permissive ACL definition in luci-mod-system-mounts that grants write access to /etc/crontabs/root to users intended only for mount configuration. Authenticated users with only the mount-configuration ACL group can append arbitrary cron entries via ubus file.write, which the default busybox crond daemon executes as root within one minute.

Fix

Incorrect Privilege Assignment

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Weakness Enumeration

Related Identifiers

CVE-2026-72840

Affected Products

Luci